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State agent_policy.py's Trusted Inputs and Test That a Malformed Registry Fails Loudly - #4163
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…stry Fails Loudly Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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🟢 Approval recommended
The changes document the trusted-input boundaries and add regression coverage confirming malformed registry input fails loudly, with no active review issues identified.
No open issues 🎉
What changed in this PR
This pull request documents the trusted-input boundary for scripts/agent_policy.py and adds regression coverage for malformed registry input.
Changes:
- Documents trusted files, checkout state, repository origin, and default-branch files.
- Records malformed trusted-file behavior and out-of-scope hardening cases.
- Adds a CLI test confirming malformed registry input fails loudly.
| File | Description |
|---|---|
| tests/test_agent_policy.py | Adds CLI coverage verifying that malformed registry input exits nonzero and reports an unreadable registry. |
| scripts/agent_policy.py | Documents trusted inputs, malformed-file failure behavior, and excluded hardening cases in the module docstring. |
| OPERATIONS.md | Records the agent policy's trusted configuration boundaries under Configuration Layout. |
Review effort: Lite
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## develop #4163 +/- ##
===========================================
- Coverage 81.60% 76.75% -4.86%
===========================================
Files 26 41 +15
Lines 9070 14279 +5209
===========================================
+ Hits 7402 10960 +3558
- Misses 1668 3319 +1651
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… Rules (#4189) ## Summary Promotes the backlog-burndown rounds and changes from other hub sessions from `develop` to `main`. - Hooks and the prose gate: #4132, #4134, #4136, #4145, #4152, #4184. The Husky hook reads its path list once and diffs a merge against `MERGE_HEAD`. Interrupts re-raise their signal, a Markdown code span reads as quoted data, and the gate picks a commit's diff base and recognizes a conflicted promotion's branch cut from `main`. - Procedures and carried rules: #4133, #4139, #4141, #4149, #4166, #4177, #4179, #4183, #4185. Resync, audit and check-this-repo procedure gaps, code style and shell interrupt rules, review-loop gaps across four skills, the context and delegation section of `AGENTS.md`, question rules in governance, the promotion line in pull request bodies, closing-keyword behavior on promotion, and the history-rewrite premise. - Review and cleanup tooling: #4138, #4148, #4154, #4156, #4157, #4163, #4164, #4168, #4174, #4180. Cleanliness reads, parked handoffs, the backlog report's JSON output, exact inline script pins, trusted inputs, env-file includes, the bounded review wait, side-reviewer matching, and a Copilot billing-failure notice read as a refusal. - Workflow and runbook contract: #4153, #4155, #4169, #4171, #4178, #4182. The runtime-secrets check, a registry entry and spec references, the Copilot runbook pointers, credential-free checkout steps, and the deploy-key and runner wording. - From other hub sessions: #4159 (a repository's own .NET line under a fleet default), #4161 (the 1Password CLI as an optional host tool), #4162 (Codex's Windows installer and one managed opencode copy). These carry no promotion line. #4182 carries no promotion line by design, and #4175 holds the split-out part of #4057's scope. Both #1448 and #4175 stay open. Fixes #1071 Fixes #1154 Fixes #1391 Fixes #1471 Fixes #1594 Fixes #1620 Fixes #1627 Fixes #1650 Fixes #1801 Fixes #2853 Fixes #3620 Fixes #3668 Fixes #3697 Fixes #3766 Fixes #3787 Fixes #3837 Fixes #3840 Fixes #3842 Fixes #3844 Fixes #3865 Fixes #3882 Fixes #3890 Fixes #3894 Fixes #3912 Fixes #3916 Fixes #3954 Fixes #4014 Fixes #4015 Fixes #4016 Fixes #4043 Fixes #4050 Fixes #4057 Fixes #4058 Fixes #4062 Fixes #4084 Fixes #4097 Fixes #4098 Fixes #4099 Fixes #4104 Fixes #4108 Fixes #4114 Fixes #4115 Fixes #4117 Fixes #4118 Fixes #4119 Fixes #4121 Fixes #4122 Fixes #4123 Fixes #4131 Fixes #4135 Fixes #4140 Fixes #4142 Fixes #4143 Fixes #4144 Fixes #4151 🤖 Generated with [Claude Code](https://claude.com/claude-code)
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State the trusted inputs of
scripts/agent_policy.pyin its module docstring and inOPERATIONS.md"Configuration Layout", so reviewers stop re-deriving the boundary.spec/files.json, therepo-config/payloads, the--checkouttree and itsorigin, and the filescheckreads at--ref(pinned to the default branch byconfigure.sh) as maintainer-controlled.test_a_malformed_registry_fails_loudly, since no CLI test covered that exit.docs/repo-config.mdneeded no change.Declined finding (local pass, outcome 2): the list omits a parent-directory
.editorconfigthatwriteconsults for a new file's line endings. It is the same maintainer-controlled filesystem class as the checkout, and listing it adds detail the issue does not ask for (GOVERNANCE.md "Trust Boundaries and Hardening Effort").Closes on promotion: #3894
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